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A147932
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Number of permutations of floor(i*9/4), i=0..n-1, with all sums of two and three adjacent terms respectively unique.
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0
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1, 2, 6, 16, 96, 376, 1924, 10912, 90032, 563836, 3920958, 33396960, 370390258, 3235719046, 30075123118, 343158668698
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OFFSET
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1,2
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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